The frame is Schwinn but the rest of the bike is a parts warehouse. The front fork is a Columbia unit from the late 40’s/50’s. The reaction truss is mounted backwards and was meant to be placed behind the spring tower making it a trailing link rather than a leading link design. The chain guard is a Snyder/Rollfast unit from about the same period as the fork and the seat pan looks like something from an early junior polo seat or perhaps from a mini-twin. The rack is an aftermarket piece as is the chain ring.